Industrial fan with circulating heat exchange device

Abstract

The utility model discloses an industrial fan with a circulation heat exchange device, which comprises a fan main body and a support, the fan main body comprises a fan shell, an outer rotor motor is arranged in the fan shell, an impeller is fixed on an outer rotor of the outer rotor motor, the rear end face of the fan shell is fixedly connected with a rear protective net cover through bolts, and the rear protective net cover is fixedly connected with the support. The rear protective net cover covers the rear end of the fan shell, a spiral coiled heat exchange copper pipe is fixed to the rear protective net cover, the top end of a lifting rod of the support is fixed to the middle of the bottom face of the fan shell, a water tank is fixed to the top face of a bottom plate of the support, a water pump is installed on the water tank, and a water inlet of the water pump makes contact with water in the water tank. The spiral coiled heat exchange copper pipe is installed at the position of the rear protective net cover, circulating cold water circulates in the spiral coiled heat exchange copper pipe, and air passes through the spiral coiled heat exchange copper pipe to achieve heat exchange, so that the temperature of the blown air is greatly reduced, the cooling effect is improved, and workers can work normally and are not prone to heatstroke.

Description

Technical Field:

[0001] The utility model relates to the technical field of factory cooling equipment, and more specifically to an industrial fan with a circulating heat exchange device. Background Art:

[0002] In existing factories, in order to achieve cooling, industrial fans are all used for operation. However, since the air temperature inside the factory is relatively high, when operating, the blown air is also hot air, and the cooling effect is limited. Especially in summer, the effect is even more subtle.

[0003] In this way, it makes it impossible for the staff to cool down quickly, prone to fatigue and even heatstroke, and unable to work normally. Summary of the Utility Model:

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an industrial fan with a circulating heat exchange device. A spiral coiled heat exchange copper tube is installed at the rear protective net cover, and cold water circulates inside it. The air passes through the spiral coiled heat exchange copper tube to achieve heat exchange, thereby greatly reducing the temperature of the blown air, improving the cooling effect, enabling the staff to work normally and not being easily heatstroke.

[0005] The solution of the utility model to solve the above technical problems is:

[0006] An industrial fan with a circulating heat exchange device includes a fan main body and a bracket. The fan main body includes a fan housing, an external rotor motor is installed in the fan housing, an impeller is fixed on the external rotor of the external rotor motor, the rear end face of the fan housing is fixedly connected to a rear protective net cover by bolts, the rear protective net cover covers the rear end of the fan housing, a spiral coiled heat exchange copper tube is fixed on the rear protective net cover, the top end of the lifting rod of the bracket is fixed in the middle of the bottom surface of the fan housing, a water tank is fixed on the top surface of the bottom plate of the bracket, a water pump is installed on the water tank, the water inlet of the water pump is in contact with the water phase in the water tank, the water outlet end of the water pump is communicated with the water inlet of the spiral coiled heat exchange copper tube through a connecting pipe, the water outlet of the spiral coiled heat exchange copper tube is communicated with a liquid return pipe connector installed on the water tank through a connecting pipe, and the liquid return pipe connector is communicated with the water tank.

[0007] The water pump is a submersible pump, which is placed in the water tank and on the top surface of the bottom plate of the water tank. The water pump is immersed in the water liquid of the water tank. A cover plate is fixed on the top of the water tank, and a through hole is formed on the cover plate. The through hole is vertically aligned with the water outlet end of the water pump.

[0008] A first through hole is formed on the edge of the cover plate, the liquid return pipe connector is clamped in the first through hole, the top of the liquid return pipe connector extends out of the top end of the first through hole, and the bottom end of the liquid return pipe connector extends out of the bottom surface of the cover plate and is communicated with the water tank.

[0009] The water tank is an annular box body, which is fixed on the top surface of the bottom plate of the bracket.

[0010] The cover plate is composed of two semi-circular annular plate bodies, which are fixedly connected to the top end surface of the water tank by bolts and cover the upper end of the water tank.

[0011] The prominent effect of the present utility model is:

[0012] A spiral coiled heat exchange copper tube is installed at the rear protective net cover, and cold water circulating inside it enables the wind to exchange heat through the spiral coiled heat exchange copper tube, thereby greatly reducing the temperature of the blown wind, improving the cooling effect, enabling the staff to work normally and not being prone to heatstroke. Description of the drawings:

[0013] Figure 1 is a partial structural schematic diagram of the present utility model;

[0014] Figure 2 is a partial structural schematic diagram of the rear protective net cover of the present utility model. Specific implementation manner:

[0015] In the embodiment, as shown in Figures 1 to 2 , an industrial fan with a circulating heat exchange device includes a fan main body 10 and a bracket 20. The fan main body 10 includes a fan housing 11, an outer rotor motor 12 is installed in the fan housing 11, an impeller 13 is fixed on the outer rotor of the outer rotor motor 12, the rear end surface of the fan housing 11 is fixedly connected with a rear protective net cover 14 by bolts. The rear protective net cover 14 includes an outer annular connection ring and a middle connecting plate. A plurality of blocking strips are fixed between the connecting plate and the outer annular connection ring. The outer ends of the blocking strips are fixed on the outer annular connection ring, and the inner ends of the blocking strips are fixed on the connecting plate;

[0016] The rear protective net cover 14 covers the rear end of the fan housing 11. Spiral coiled heat exchange copper tubes 15 are fixed on the front wall surfaces of all the blocking strips of the rear protective net cover 14 (or can be fixed on the rear wall surface). It can be fixed by welding. The top end of the lifting rod 21 of the bracket 20 is fixed in the middle of the bottom surface of the fan housing 11. A water tank 30 is fixed on the top surface of the bottom plate of the bracket 20. A water pump 1 is installed on the water tank 30. The water inlet of the water pump 1 is in contact with the water phase in the water tank 30. The water outlet end of the water pump 1 is connected to the water inlet of the spiral coiled heat exchange copper tube 15 through a connecting pipe. The water outlet of the spiral coiled heat exchange copper tube 15 is connected to a return pipe connection head 2 installed on the water tank 30 through a connecting pipe, and the return pipe connection head 2 communicates with the water tank 30.

[0017] Furthermore, the water pump 1 is a submersible pump, which is located in the water tank 30 and placed on the top surface of the bottom plate of the water tank 30. The water pump 1 is immersed in the liquid in the water tank 30. The water inlet end of the water pump 1 is at the bottom, which is close to the top surface of the bottom plate of the water tank 30. A cover plate 31 is fixed on the top of the water tank 30. A through hole is formed in the cover plate 31, and the through hole is vertically aligned with the water outlet end of the water pump 1. The connecting pipe can be inserted into the through hole, and its bottom end extends into the water tank 30 and is clamped on the water outlet end of the water pump 1 to achieve connection.

[0018] Furthermore, a first through hole is formed at the edge of the cover plate 31. The liquid return pipe connector 2 is clamped in the first through hole. The top of the liquid return pipe connector 2 extends out of the top end of the first through hole. The bottom end of the liquid return pipe connector 2 extends out of the bottom surface of the cover plate 31 and communicates with the water tank 30. The bottom end of the corresponding connecting pipe is clamped on the top end of the liquid return pipe connector 2 to achieve connection, and the other end is clamped at the water outlet of the spiral coiled heat exchange copper pipe 15 to achieve connection.

[0019] Furthermore, the water tank 30 is an annular box body, which is fixed on the top surface of the bottom plate of the bracket 20.

[0020] The cover plate 31 is composed of two semi-circular annular plate bodies, which are fixedly connected to the top end surface of the water tank 30 by bolts and cover the upper end of the water tank 30. This structure facilitates the disassembly and installation of the cover plate 31.

[0021] Furthermore, the bracket 20 includes a bottom plate. A vertical support rod 22 is fixed in the middle of the top surface of the bottom plate. The vertical support rod 22 is located in the vertical through hole in the middle of the water tank 30. Two vertically aligned through holes are formed in the middle of the vertical support rod 22. A vertically extending long through groove 211 is formed in the middle of the lifting rod 21. The screw parts of the two adjusting bolts 3 are inserted into the long through groove 211 and the corresponding through holes of the vertical support rod 22. The rear end of the screw part of the adjusting bolt 3 is screwed into the corresponding locking nut 23 welded and fixed on the rear wall surface of the vertical support rod 22. A washer 4 is inserted on the front part of the screw part of the adjusting bolt 3. The washer 4 is clamped between the rotating part of the adjusting bolt 3 and the front wall surface of the lifting rod 21. The front wall surface of the vertical support rod 22 is pressed against the rear wall surface of the lifting rod 21. With this structure, after loosening the two adjusting bolts 3, the lifting rod 21 can be adjusted up and down, thereby changing the height position of the fan main body 10. After the adjustment is completed, tighten the adjusting bolts 3. The adjustment is convenient.

[0022] Furthermore, a front protective mesh cover 19 is fixedly connected to the front end face of the fan housing 11 by bolts. The structure of the front protective mesh cover 19 is basically the same as that of the rear protective mesh cover 14, and also includes an outer annular connection ring and a middle connecting plate. A plurality of blocking strips are fixed between the connecting plate and the outer annular connection ring. The outer ends of the blocking strips are fixed to the outer annular connection ring, and the inner ends of the blocking strips are fixed to the connecting plate. The front protective mesh cover 19 covers the front part of the fan housing 11, and the rear end of the outer rotor motor 12 is fixed to the connecting plate in the middle of the rear protective mesh cover 14.

[0023] When this embodiment is in use, first, water liquid (omitted and not shown in the attached drawings) is filled into the water tank 30, and ice cubes are placed in the water tank 30 to lower the temperature of the water liquid. Then, the water pump 1 is turned on to make the water liquid circulate. At the same time, the outer rotor motor 12 is turned on to rotate the impeller 13 to realize air outlet. When the water pump 1 is running, the water in the water tank 30 flows into the spiral coiled heat exchange copper tube 15. The impeller 13 rotates to transport the air at the rear outwards to form wind. When the air passes through the spiral coiled heat exchange copper tube 15, heat exchange occurs between them, greatly reducing the air temperature, making the blown air cold wind, so that it can quickly cool down when blowing on people, prevent heatstroke, and improve comfort. After heat exchange, the temperature of the water rises and flows back to the water tank 30 along the water outlet of the spiral coiled heat exchange copper tube 15. After exchanging heat with the ice cubes in the water tank 30, it becomes cold water again and can be used again. It has good use effect and simple structure.

[0024] When this embodiment is in use, in a hot environment, such as when the temperature reaches 40 °C, about half of the ice cubes placed in the water tank 30 can generally be used for about 1 hour. When the temperature of the blown air no longer decreases, ice cubes need to be replenished.

Claims

1. An industrial fan with a circulating heat exchange device, comprising a fan main body (10) and a bracket (20), characterized in that: The fan main body (10) includes a fan housing (11), an external rotor motor (12) is installed in the fan housing (11), an impeller (13) is fixed on the external rotor of the external rotor motor (12), the rear end face of the fan housing (11) is fixedly connected to a rear protective net cover (14) by bolts, the rear protective net cover (14) covers the rear end of the fan housing (11), a spiral coiled heat exchange copper tube (15) is fixed on the rear protective net cover (14), the top end of the lifting rod (21) of the bracket (20) is fixed in the middle of the bottom surface of the fan housing (11), a water tank (30) is fixed on the top surface of the bottom plate of the bracket (20), a water pump (1) is installed on the water tank (30), the water inlet of the water pump (1) is in contact with the liquid phase of the water in the water tank (30), the water outlet end of the water pump (1) is communicated with the water inlet of the spiral coiled heat exchange copper tube (15) through a connecting pipe, the water outlet of the spiral coiled heat exchange copper tube (15) is communicated with a liquid return pipe connector (2) installed on the water tank (30) through a connecting pipe, and the liquid return pipe connector (2) is communicated with the water tank (30).

2. The industrial fan with a circulating heat exchange device according to claim 1, wherein: The water pump (1) is a submersible pump, which is placed in the water tank (30) and on the top surface of the bottom plate of the water tank (30), the water pump (1) is immersed in the liquid of the water tank (30), a cover plate (31) is fixed on the top of the water tank (30), and a through hole is formed in the cover plate (31), and the through hole is vertically aligned with the water outlet end of the water pump (1).

3. The industrial fan with a circulating heat exchange device according to claim 2, characterized in that: A first through hole is formed in the edge of the cover plate (31), the liquid return pipe connector (2) is clamped in the first through hole, the top of the liquid return pipe connector (2) extends out of the top end of the first through hole, and the bottom end of the liquid return pipe connector (2) extends out of the bottom surface of the cover plate (31) and is communicated with the water tank (30).

4. The industrial fan with a circulating heat exchange device according to claim 1, characterized in that: The water tank (30) is an annular box body, which is fixed on the top surface of the bottom plate of the bracket (20).

5. The industrial fan with a circulating heat exchange device according to claim 2, characterized in that: The cover plate (31) is composed of two semi-circular ring-shaped plate bodies, which are fixedly connected to the top end surface of the water tank (30) by bolts and cover the upper end of the water tank (30).

6. The industrial fan with a circulating heat exchange device according to claim 4, characterized in that: The bracket (20) includes a bottom plate, a vertical support rod (22) is fixed in the middle of the top surface of the bottom plate, the vertical support rod (22) is vertically penetrated through the through hole in the middle of the water tank (30), two through holes are formed in the middle of the vertical support rod (22) and are vertically aligned, a long through groove (211) extending vertically is formed in the middle of the lifting rod (21), the screw parts of two adjusting bolts (3) are inserted into the corresponding through holes of the long through groove (211) and the vertical support rod (22), the rear end of the screw part of the adjusting bolt (3) is screwed into a locking nut (23) welded and fixed on the rear wall surface of the vertical support rod (22), a washer (4) is inserted on the front part of the screw part of the adjusting bolt (3), the washer (4) is clamped between the rotating part of the adjusting bolt (3) and the front wall surface of the lifting rod (21), and the front wall surface of the vertical support rod (22) is pressed against the rear wall surface of the lifting rod (21).

7. The industrial fan with a circulating heat exchange device according to claim 1, characterized in that: A front protective net cover (19) is fixedly connected to the front end face of the fan housing (11) by bolts. The front protective net cover (19) covers the front part of the fan housing (11), and the rear end of the outer rotor motor (12) is fixed to the middle of the rear protective net cover (14).

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